Sanaqulovasilbek shifrlangan matn: ucpcswnqxcukndgm

212-19 guruh Talabasi: Sanaqulov Asilbek.

1-usul: Sezar usulida shifrlash.

Kalit k=2

Matn:SANAQULOVASILBEK

Shifrlangan matn:UCPCSWNQXCUKNDGM

2-usul: Polibiya kvadrati.

Matn:SANAQULOVASILBEK

	1	2	3	4	5
1	A	B	C	D	E
2	F	G	H	I/J	K
3	L	M	N	O	P
4	Q	R	S	T	U
5	V	W	X	Y	Z

Shifrlangan matn:XFSFVZQTAFXOQGKP

3-usul: Affin tizimidagi Sezar usuli shifrlash

A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z
0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25

a=3 b=4

m=26

Matn:SANAQULOVASILBEK

Matn	S	A	N	А	Q	U	L	O	V	A	S	I	L	B	E	K
x	18	0	13	0	16	20	11	14	21	0	18	8	11	1	4	10
3x+4	58	4	43	4	52	64	37	46	67	4	58	28	37	7	16	34
(3x+4)mod26	6	4	17	4	0	12	11	20	15	4	6	2	11	7	16	8
Shifr matn	G	E	R	E	A	M	L	U	P	E	G	C	L	H	Q	I

4-usul: Vijiner usulida shifrlash.

Matn:SANAQULOVASILBEK

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6-usul: RSA usulida shifrlash.

1. 
   P=3 q=11
   
2. 
   n=p*q=3*11=33
   

_e=3

3. 
   e*d(mod)=1
   

3d=1 (mod 20) d=7

4. 
   А1, В2, С3 ……… Z26
   

A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26
27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	49	50	51	52

Matn:SANAQULOVASILBEK

(19,1,14,1,17,21,12,15,22,1,19,9,12,2,5,11)

{e;n}={3;33}

x=19 da (19³)(mod33)=28

_x=1 da (1³)(mod33)=1

_x=14 da (14³)(mod33)=4

_x=1 da (1³)(mod33)=1

_x=17 da (17³)(mod33)=29

_x=21 da (21³)(mod33)=21

_x=12 da (12³)(mod33)=12

_x=15 da (15³)(mod33)=9

x=22 da (22³)(mod33)=22

_x=1 da (1³)(mod33)=1

x=19 da (19³)(mod33)=28

x=9 da (9³)(mod33)=3

x=12 da (12³)(mod33)=12

x=2 da (2³)(mod33)=8

x=5 da (5³)(mod33)=26

x=11 da (11³)(mod33)=11

Shifrlangan matn:BADACULIVABCLHZK

_{7-usul:El-Gamal algaritmida shifrlash.}

g=3; p=31; a=4; y=(g^a)modp=(3^4)mod31=19

M= SANAQULOVASILBEK(18,0,12,0,16,20,11,14,21,0,18,8,11,1,4,10 – alifbodagi o’rni)

ЭКУБ(,) =1 k=7

A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z
0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25

r=(g^k)modp=(3^7)mod31=17;

C1=m*y^k=18*(19^7)mod31=2;

C2=m*y^k=0*(19^7)mod31=0;

C3=m*y^k=12*(19^7)mod31=22;

C4=m*y^k=0*(19^7)mod31=0;

C5=m*y^k=16*(19^7)mod31=19;

C6=m*y^k=20*(19^7)mod31=16;

C7=m*y^k=11*(19^7)mod31=15;

C8=m*y^k=14*(19^7)mod31=5;

C9=m*y^k=21*(19^7)mod31=23;

C10=m*y^k=0*(19^7)mod31=0;

C11=m*y^k=18*(19^7)mod31=2;

C12=m*y^k=8*(19^7)mod31=25;

C13=m*y^k=11*(19^7)mod31=15;

C14=m*y^k=1*(19^7)mod31=7;

C15=m*y^k=4*(19^7)mod31=28;

C16=m*y^k=10*(19^7)mod31=8;

Shifrlangan matn:CAWATQPFXACZPHCI